I can’t link my Medicare to myGov because my tax stuff is already linked under a variation of my name. I need my birth certificate to change my tax office name, which I can’t find, and my Medicare card has now expired lolololol (this is all entirely my fault)
There is also $7000 in a super account from many, many years ago which I have been unable to consolidate for similar reasons (extreme silly past Rick areas + ongoing severe case of form fatigue)